AM-2014-10013-A · Cupritearchived
physical & structuralrev. 3
| designation | Cuprite |
|---|---|
| chemical formula | Cu₂O |
| classification | Oxide |
| crystal system | Cubic |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 6.14 |
| colour | Brick red |
| type locality | Anjanabonoina, Madagascar |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 150, 220, 633
notessubmitter remarks + registry
Cuprite of ordinary appearance and habit. Used as a calibration reference during the analytical pass.
chain of custody8 events · 6 seal-breaks
Events recorded against this accession in the registry's printed custody book. Operator initials are anonymous. Storage codes follow the convention vault-shelf-drawer.
| timestamp | stage | detail | op. |
|---|---|---|---|
| 2014-02-01 12:16 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | M.A. |
| 2014-02-05 09:36 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | M.A. |
| 2014-02-13 11:21 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (532 nm) ref. checked: AMCSD #6119 | M.A. |
| 2014-02-14 15:09 UTC | storage | re-bagged, label re-printed; placed in vault A, shelf 03, drawer 23 | M.A. |
| 2016-02-14 12:45 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2018-02-13 13:16 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2020-02-13 15:57 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2022-02-12 16:12 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
physical location: vault A · shelf 03 · drawer 23 · last documented inspection: 2022-02-12 16:12 UTC